learning similarity metrics for event identification in social media

... reaction-centered graphs of the type o f Graph 1 (these paths may contain parallel and antiparallel arrows). The sign of that element therefore depends on the both the sign and the magnitudes of these influen ce paths ... the kinetic parameters t hat enable such oscillations. The main result of such an analysis is that oscillations arise if t he parameter k 3 is the l a...

Ngày tải lên: 19/02/2014, 16:20

... addressing a single individual. When addressing an individual, people gaze 1.6 times more while listening (62%) than while speaking (40%). When addressing a triad the amount of speaker gaze increases ... feature set including a feature that con- veys information about meeting context. Contextual features provide information about the preceding utterances. We experimented with using informatio...

Ngày tải lên: 08/03/2014, 21:20

... used as the training data. In the first step, opinion target and opinion word candidates are extracted from the training data. Frequency counts of the annotated opinion targets and opin- ion words ... Darmstadt http://www.ukp.tu-darmstadt.de/people Abstract Current work on automatic opinion min- ing has ignored opinion targets expressed by anaphorical pronouns, thereby missing a...

Ngày tải lên: 17/03/2014, 00:20

... query words. 6 Conclusion and Future Direction In this paper, we proposed a novel approach to au- tomatic synonym identification based on supervised machine learning and distributional features. ... propose a novel approach to automatic synonym identification based on super- vised learning technique. Firstly, we re-formalize synonym acquisition as a classifica...

Ngày tải lên: 23/03/2014, 17:20

... drawn from lexical sources, corpora and the world wide web and combined in a variety of ways, including factor anal- ysis and machine learning techniques, to determine when a text contains affective ... Computational Linguistics Sentiment Polarity Identification in Financial News: A Cohesion-based Approach Ann Devitt School of Computer Science & Statistics, Trinity Coll...

Ngày tải lên: 23/03/2014, 18:20

... based semi -supervised learning. In Proceedings of ACL’06, pages 129–136. M. Collins and Y. Singer. 1999. Unsupervised mod- els for named entity classification. In Proceedings of the Joint SIGDAT ... weakly supervised ML, and point toward avenues for future research. 1 Introduction The automatic processing of scientific papers using NLP and machine learning (ML) techniques is a...

Ngày tải lên: 23/03/2014, 18:20

... either at the N-terminus or at the C-terminus. To introduce the histidine-tag at the N-terminus, we introduced a coding sequence for MHHHHHHGG before the original start codon. To introduce the ... trypsination, the peptide masses of the 30 kDa protein were determined by MALDI-TOF MS. As the genome sequence of P. stipitis is known [12], these masses allowed the ident...

Ngày tải lên: 30/03/2014, 04:20

... Similarity metrics for aligning children's articulation data 1. Background This paper concerns the implementation and testing of similarity metrics for the alignment of phonetic ... segment to mark as 1229 Similarity metrics for aligning children's articulation data An important step in the automatic analysis of child-language articulation data is to a...

Ngày tải lên: 31/03/2014, 04:20

... w/o uncertainty Existing association w. uncertainty Proposed association w. uncertainty Proposed association w. group w. uncertainty (c) 6 identification regions and tracking failure within 0.3 m Average ... w/o uncertainty Existing association w. uncertainty Proposed association w. uncertainty Proposed association w. group w. uncertainty (d) 6 identification regions and tra...

Ngày tải lên: 21/06/2014, 07:20

... Advances in Signal Processing Volume 2010, Article ID 262869, 12 pages doi:10.1155/2010/262869 Review A rticle Fluctuation Analyses for Pattern Classification in Nondestructive Materials Inspection A. ... estimating the size of a discontinuity in a material by measuring the difference in time between ultrasonic signals scattering off the opposite tips of the discontinui...

Ngày tải lên: 21/06/2014, 16:20

... pages doi:10.1155/2008/875351 Research Article Adaptive Kernel Canonical Correlation Analysis Algorithms for Nonparametric Identification of Wiener and Hammerstein Systems Steven Van Vaerenbergh, Javier V ´ ıa, and Ignacio ... can be done, for instance, by introducing a forgetting factor. In this section, we discuss an adaptive version of kernel CCA which...

Ngày tải lên: 21/06/2014, 22:20

... Shift-Invariant Technique and Its Application for Synchronization and Channel Identification in UWB Systems Jian (Andrew) Zhang, 1, 2 Rodney A. Kennedy, 2 and Thushara D. Abhayapala 2 1 Networked Systems Research ... reduced-rank shift-invariant technique and its application for synchronization and channel identification in UWB systems. Shi...

Ngày tải lên: 21/06/2014, 23:20

... concept is a fundamental and integrating part of SR and CR because it allows one to support multimode and multiband commu- nications according to SR. In general, MI can be blind or assisted [10], and modes can ... evaluation,” in Proc. 4th International ACM Workshop on Modeling, Analysis and Simulation of Wireless and Mobile Systems, Rome, Italy, July 2001. Matteo Ga...

Ngày tải lên: 23/06/2014, 01:20

... An Algorithm for Blind User Identification in Multiuser CDMA 657 REFERENCES [1] C M. Chang and K C. Chen, “Joint linear user identification, timing, phase, and amplitude estimation in DS/CDMA ... Journal on Applied Signal Processing 2005:5, 649–657 c  2005 Hindawi Publishing Corporation A MUSIC-Based Algorithm for Blind User Identification in Multiuser DS-C...

Ngày tải lên: 23/06/2014, 01:20

... extrinsic clustering evaluation metrics based on formal constraints. Information Retrieval, 2008. [6] H. Becker, M. Naaman, and L. Gravano. Event identification in social media. In Proceedings ... so- cial media domain, for combining a set of similarity metrics to predict when social media documents correspond to the same event. Our experiments suggest that our simil...

Ngày tải lên: 01/07/2014, 18:25